they kept... they kept them charges in place and put me in prison. >> narrator: once again, they would arrest a suspect, confident that the dna would eventually prove them right. >> pat and joe dick ,sr., joe's parents, live in maryland. >> i came in from work one day and the phone was ringing, and i picked it up. it was the captain of the uss saipan, and he told me that my son had been arrested. and i told him, i says, "joseph dick, jr.?" i says, "do you have the right child? this is not... my son wouldn't be arrested for something like that." and he said no, he said, it was definitely, you know, my son, there was no mistake. >> that evening, joe called us at home and he said to me, "i didn't do it, i didn't do it, i didn't do it."